yaml解析

2024-06-14 11:18

文章标签 解析 yaml

本文主要是介绍yaml解析，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

1、使用spring自带的yaml解析工具：

public class YamlUtils {private static final Logger logger = LogManager.getLogger(YamlUtils.class);public static Map<String, Object> yaml2Map(String yamlSource) {try {YamlMapFactoryBean yaml = new YamlMapFactoryBean();yaml.setResources(new ClassPathResource(yamlSource));return yaml.getObject();} catch (Exception e) {logger.error("Cannot read yaml", e);return null;}}public static Properties yaml2Properties(String yamlSource) {try {YamlPropertiesFactoryBean yaml = new YamlPropertiesFactoryBean();yaml.setResources(new ClassPathResource(yamlSource));return yaml.getObject();} catch (Exception e) {logger.error("Cannot read yaml", e);return null;}}
}

spring提供的yaml工具只能够解析出map和properties，如果想解析生成java bean就有点力不从心，不方便。
2、使用snakeyaml
在maven中引入

<dependency><groupId>org.yaml</groupId><artifactId>snakeyaml</artifactId><version>1.17</version></dependency>

Yaml yaml = new Yaml();
LibraryPolicyDto libraryPolicyDto = yaml.loadAs(inputStream, LibraryPolicyDto.class);

打完收工。。。
附yaml文件：

systemLibraryId: 1
relativeLibraryId: xxx
readerPolicyIndex: 1
bookPolicyIndex: 1
otherPublicApi:
-
name: showApi
desc: 查看api
url: 127.0.0.1:8080/api/showApi
port: 8080
inputParams:
- id:int
- libraryId:String
outputParams:
- name:String
- desc:String
- url:String
- inputParams:String
- ouputParams:String

附LibraryPolicyDto

public class LibraryPolicyDto {private int systemLibraryId;private String relativeLibraryId;private int readerPolicyIndex;private int bookPolicyIndex;private List<ApiDto> otherPublicApi;//getter//setter
}